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Purpose <p>To investigate the influence of facet tropism (FT) on spinal parameters and clinical symptoms of degenerative lumbar spondylolisthesis (DLS) after posterior lumbar intervertebral fusion (PLIF).</p> Methods <p>A total of 108 patients with DLS who received PLIF surgery from June 2016 to June 2020 were retrospectively analyzed and divided into non-facet tropism (NFT) group and FT group according to bilateral facet joint angle (FJA) difference of more than 10°. Pre-postoperative clinical data compared between groups. Correlation analysis was performed between imaging parameter changes and symptom score changes. Groups were divided by preoperative FT segments to compare imaging parameters and symptom score changes with the NFT group.</p> Results <p>Overall, 54 patients were included in NFT group and 54 patients were included in FT group. The FT group had a lower lumbar range of motion (ROM) than the NFT group, with similar preoperative clinical data. Both groups showed improved imaging parameters and symptom scores after PLIF compared to preoperative levels. The ROM in the FT group was lower than those in the NFT group (<i>P &lt;</i> 0.01). Both groups showed similar symptom improvements, but the FT group had significantly higher VAS and ODI scores at follow-up than the NFT group (<i>P &lt;</i> 0.05). Improvements in VAS and ODI were significantly correlated with changes in imaging parameters and ROM in both groups.</p> Conclusion <p>PLIF improves DLS symptoms and lumbar curvature but restricts postoperative ROM. FT compromises correction efficacy, necessitating preoperative FT evaluation for optimal surgical planning.</p>

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Does facet tropism influence the clinical outcomes of posterior lumbar interbody fusion for degenerative lumbar spondylolisthesis?

  • 期刊论文

  • 发表日期：

    2025年11月7日

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  • Tianyi Wu,
  • Yun Teng,
  • Xianggu Zhong,
  • Hao Yu,
  • Junjie Niu,
  • Dawei Song,
  • Jinning Wang,
  • Qi Yan,
  • Xiao Sun,
  • Rui Chen,
  • Leyu Zhao,
  • Jun Zou

摘要

Purpose

To investigate the influence of facet tropism (FT) on spinal parameters and clinical symptoms of degenerative lumbar spondylolisthesis (DLS) after posterior lumbar intervertebral fusion (PLIF).

Methods

A total of 108 patients with DLS who received PLIF surgery from June 2016 to June 2020 were retrospectively analyzed and divided into non-facet tropism (NFT) group and FT group according to bilateral facet joint angle (FJA) difference of more than 10°. Pre-postoperative clinical data compared between groups. Correlation analysis was performed between imaging parameter changes and symptom score changes. Groups were divided by preoperative FT segments to compare imaging parameters and symptom score changes with the NFT group.

Results

Overall, 54 patients were included in NFT group and 54 patients were included in FT group. The FT group had a lower lumbar range of motion (ROM) than the NFT group, with similar preoperative clinical data. Both groups showed improved imaging parameters and symptom scores after PLIF compared to preoperative levels. The ROM in the FT group was lower than those in the NFT group (P < 0.01). Both groups showed similar symptom improvements, but the FT group had significantly higher VAS and ODI scores at follow-up than the NFT group (P < 0.05). Improvements in VAS and ODI were significantly correlated with changes in imaging parameters and ROM in both groups.

Conclusion

PLIF improves DLS symptoms and lumbar curvature but restricts postoperative ROM. FT compromises correction efficacy, necessitating preoperative FT evaluation for optimal surgical planning.